1123123231339 has 2 divisors, whose sum is σ = 1123123231340. Its totient is φ = 1123123231338.

The previous prime is 1123123231303. The next prime is 1123123231379. The reversal of 1123123231339 is 9331323213211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123123231339 - 2³¹ = 1120975747691 is a prime.

It is a super-2 number, since 2×1123123231339² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123123231379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561561615669 + 561561615670.

It is an arithmetic number, because the mean of its divisors is an integer number (561561615670).

Almost surely, 2^{1123123231339} is an apocalyptic number.

1123123231339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123123231339 is an equidigital number, since it uses as much as digits as its factorization.

1123123231339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 34.

The spelling of 1123123231339 in words is "one trillion, one hundred twenty-three billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred thirty-nine".